The study undertakes a systematic literature review of government-provided E-Services for businesses (Government to Business E-Services). The literature review process selects and analyses 331 publications. The research highlights the polydispersity of identified publications, resulting from the fragmentation of disciplines. The primary activities in this research field occur mainly in Europe and Asia. In addition, there is a steady engagement of researchers on G2B E-Services. The overall maturity level of governmental services identified in the literature review is quite satisfactory. The main research topics are E-Procurement, E-Customs, E-Taxes, Interoperability, Process Transformation, Cost and Pricing Issues, Barriers and Key Success Factors, and Assessment of Effectiveness. Case studies and surveys are the most popular research methods. In the future, a deeper analysis of the stakeholders' views, enhancement of planning, development and transformation of G2B E-Services, redesign of back-office processes, and interoperability between different systems should attract research interest. Finally, we expect further analysis of E-Customs and E-Invoices, as these services have significant added value.

该研究对政府为企业提供的电子服务（政府电子商业服务）进行了系统的文献综述。文献综述过程选择并分析了331种出版物。该研究突出了由于学科分散造成的出版物的多分散性。该研究领域的主要活动主要发生在欧洲和亚洲。此外，G2B电子服务的研究人员一直在积极参与。文献综述中确定的政府服务的整体成熟度是令人满意的。主要研究主题是电子采购，电子海关，电子税收，互操作性，流程转换，成本和定价问题，障碍和关键成功因素以及有效性评估。案例研究和调查是最流行的研究方法。将来，对利益相关者的观点进行更深入的分析，增强G2B电子服务的计划，开发和转换，后台流程的重新设计以及不同系统之间的互操作性，应该会引起研究兴趣。最后，我们期望对电子海关和电子发票进行进一步分析，因为这些服务具有显着的附加值。